5243644 has 12 divisors (see below), whose sum is σ = 10487344. Its totient is φ = 2247264.

The previous prime is 5243629. The next prime is 5243647. The reversal of 5243644 is 4463425.

5243644 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 187273 = 5243644 / (5 + 2 + 4 + 3 + 6 + 4 + 4).

It is a d-powerful number, because it can be written as 5 + 2³ + 4² + 3⁶ + 6 + 4¹⁰ + 4¹¹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5243647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93609 + ... + 93664.

Almost surely, 2^5243644 is an apocalyptic number.

It is an amenable number.

5243644 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5243644 is a wasteful number, since it uses less digits than its factorization.

5243644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187284 (or 187282 counting only the distinct ones).

The product of its digits is 11520, while the sum is 28.

The square root of 5243644 is about 2289.9004345167. The cubic root of 5243644 is about 173.7311654273.

The spelling of 5243644 in words is "five million, two hundred forty-three thousand, six hundred forty-four".